JP2017162768A - LED lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an LED lighting device compactly attachable to a ceiling of a house.SOLUTION: An LED lighting device includes: a device case 5 which has a first plate part 51 having a front face 511 and a reverse face 512 facing opposite sides to each other in a first direction Z, and a second plate part 52 surrounding the first plate part 51 in the direction Z, and extending in a direction in which the reverse face 512 faces the first plate part 51 in the first direction Z; an LED unit B detachably attached to a reverse face 512 side and stored in the device case 5; and a support piece 61 supported on the front face 511 and rotatable around a second direction Y orthogonal with respect to the first direction Z; and restitutive force generating means 62 generating restitutive force to rotate the support piece 61 on the reverse face 512 to the first plate part 51 by rotating the support piece 61 to a front face 511 side with respect to the first plate part 51.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an LED lighting device that mainly constitutes a downlight attached to a ceiling of a house or the like.

  An LED lighting device that constitutes a downlight attached to a ceiling of a house, etc. includes an LED unit (such as an LED bulb), a device case that houses the LED unit, and a support piece that is an elastic body fixed to a side wall of the device case Is generally provided. For example, Patent Document 1 discloses an example of such an LED lighting device. In the LED lighting device disclosed in Patent Document 1, one end of a support piece (attachment spring 27 of Patent Document 1), which is a leaf spring, is fixed to the side wall of the device case (reflecting portion 25 of Patent Document 1) and supported. The piece extends vertically downward along the side wall. The support piece extending vertically downward is bent in a state of being in contact with a collar portion (the collar portion 28 of Patent Document 1) formed at the lower end of the side wall of the apparatus case, and is in a state of projecting to the side. This bent portion becomes a rotation fulcrum of the support piece, and the support piece rotates when a load is applied to the overhanging portion. Moreover, the front-end | tip part of the support piece protruded to the side protrudes in the perpendicular downward direction.

  When mounting such an LED lighting device on the ceiling, the projecting portion of the support piece is folded along the extending direction of the side wall of the device case, and the tip of the support piece is attached to the mounting hole provided on the ceiling. The LED lighting device is hung on the ceiling so that the LED lighting device is suspended from the ceiling. When the LED lighting device is pushed into the back of the mounting hole from this state, the support piece protrudes to the side by a restoring force, and the protruding portion comes into contact with the ceiling, so that the LED lighting device is attached to the ceiling. At this time, the LED illumination device is embedded in the back of the ceiling.

  FIG. 1 of Patent Document 1 shows a state of the LED lighting device attached to the ceiling. According to FIG. 1, the bent portion (corresponding to the rotation fulcrum of the support piece) of the support piece (attachment spring 27 of Patent Document 1) that contacts the eaves part (equipment 28 of Patent Document 1) It is located inside (the mounting hole 12 of Patent Document 1). Therefore, the diameter of the mounting hole provided in the ceiling must be a length required to accommodate the bent portion of the support piece inside the mounting hole in addition to the outer diameter of the device case. Therefore, the diameter of the mounting hole is inevitably longer than the size of the device case in plan view (viewed in the vertical direction).

  Therefore, in such an LED lighting device, when a larger size of the LED unit is applied in order to increase the illuminance in the room, the size in a plan view of the device case that accommodates the LED unit is enlarged. The resulting mounting hole diameter is even longer. Therefore, the LED lighting device is not compactly attached to the ceiling, and the outer diameter of the collar portion of the LED lighting device is obstructed, and the strength of the ceiling is reduced due to the increased mounting hole diameter. Concerned.

JP 2013-143235 A

  In view of the above circumstances, an object of the present invention is to provide an LED lighting device that can be more compactly attached to a ceiling of a house or the like.

  The LED lighting device provided by the present invention includes a first plate portion having a front surface and a back surface facing opposite sides in a first direction, and surrounds the first plate portion in the first direction view, and the first plate A device case having a second plate portion extending in a direction in which the back surface of the first direction faces the portion, and an LED that is detachably attached to the back surface side and accommodated in the device case A unit, a support piece supported on the surface and rotatable about a second direction perpendicular to the first direction, and the support piece rotated to the surface side with respect to the first plate portion Then, a restoring force generating means for generating a restoring force for rotating the support piece on the back surface side with respect to the first plate portion is provided.

  In the embodiment of the present invention, preferably, a pair of the restoring force generating means and a pair of the support pieces are provided, and in the third direction, both of which are perpendicular to the first direction and the second direction, The restoring force generating means is supported on the surface in a state of being separated from each other.

  In the embodiment of the present invention, preferably, the restoring force generating means is a coil spring.

  Preferably, in the embodiment of the present invention, the restoring force generating means is two coil springs spaced apart in the second direction, and the support piece is sandwiched between the restoring force generating means in the second direction. Yes.

  In the embodiment of the present invention, preferably, the support piece is made of a wire.

  Preferably, in the embodiment of the present invention, the support piece has a protrusion that protrudes in a direction in which the restoring force acts in a rotation direction around the second direction at a position separated from the rotation center of the support piece. .

  In the embodiment of the present invention, preferably, the support piece and the restoring force generating means are constituted by a single member made of one wire.

  In an embodiment of the present invention, preferably, a holding body fixed to the surface is provided, and the restoring force generating means is sandwiched between the surface and the holding body.

  Preferably, in the embodiment of the present invention, the holding body covers the pair of restoring force generating means, and a pair of covering portions each formed with a holding body insertion hole penetrating in the first direction; A pair of holding body fixing portions connected to the pair of covering portions and fixed to the surface, respectively, and a pair of holding body fixings formed in the pair of holding body insertion holes and the first plate portion A pair of holding body fastening members are respectively communicated with the holes.

  Preferably, in the embodiment of the present invention, a pair of through grooves along the first direction and the third direction are respectively formed in the pair of covering portions, and the support piece is formed in the pair of through grooves. Guided and rotated around the second direction.

  Preferably, in the embodiment of the present invention, each of the pair of holding body fixing portions is formed with a holding body protrusion that protrudes in a direction in which the back surface faces in the first direction. It engages with a pair of holding body engaging holes formed in the first plate part.

  In the embodiment of the present invention, preferably, the pair of covering portions and the pair of holding body fixing portions are constituted by a single member.

  In the embodiment of the present invention, preferably, one of the covering portions and one of the holding body fixing portions are configured by a single member, and the other covering portion and the other holding body fixing portion are the other. It is constituted by a single member.

  Preferably in the embodiment of the present invention, a terminal block that is electrically connected to the LED unit and connected to an external power supply cable, a terminal block support that is fixed to the surface and supports the terminal block, Is provided.

  Preferably, in the embodiment of the present invention, the terminal block is located between the pair of support pieces in the third direction.

  In an embodiment of the present invention, preferably, the power supply cable is connected to the terminal block from the second direction.

  Preferably, in the embodiment of the present invention, the terminal block is arranged in a state where the terminal block is entirely separated from the surface in the first direction view.

  Preferably, in the embodiment of the present invention, the terminal block is arranged in a state in which a part thereof protrudes from the surface in the first direction view.

  Preferably, in the embodiment of the present invention, the terminal block support is a support fixing portion fixed to the surface, a terminal block supporting portion connected to the support fixing portion and supporting the terminal block, Have

  In an embodiment of the present invention, preferably, the terminal block support portion has a support portion back surface facing in the same direction as the back surface, and the terminal block is supported by the support portion back surface.

  Preferably, in the embodiment of the present invention, a part of the terminal block is located on the back side with respect to the first plate portion in the first direction.

  Preferably, in the embodiment of the present invention, the support fixing portion is formed with a support protrusion that protrudes in a direction in which the back surface faces in the first direction, and the support protrusion is the first plate portion. It is engaged with the support engaging hole formed in.

  In an embodiment of the present invention, preferably, a part of the support fixing portion is connected to the pair of holding member fixing portions.

  Preferably, in the embodiment of the present invention, the support fixing portion and the pair of holding member fixing portions are separated from each other on the surface.

  Preferably, in the embodiment of the present invention, the device case is interposed between the first plate portion and the second plate portion, and as it goes from the first plate portion to the second plate portion, There is a tapered portion that is inclined so that the diameter of the cross section of the device case with respect to the first direction becomes longer.

  In an embodiment of the present invention, preferably, a socket is provided that is fixed to the back surface and that conducts to the terminal block, and the LED unit is detachably attached to the socket.

  Preferably, in the embodiment of the present invention, the device case has an opening formed by an edge of the second plate portion facing a direction in which the back surface faces in the first direction, and the first direction. The shape of the opening when viewed is a circular shape.

  Preferably, in the embodiment of the present invention, the device case has an annular flange that is formed along the opening and extends in a direction perpendicular to the first direction.

  Preferably, in the embodiment of the present invention, the flange portion has a flange surface facing the direction in which the surface faces in the first direction, and an annular packing is disposed on the flange surface.

  Preferably, in the embodiment of the present invention, the shape of the LED unit in the first direction view is a circular shape.

  According to the present invention, the LED lighting device can be more compactly attached to the ceiling.

  Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the accompanying drawings.

It is a perspective view of the LED lighting apparatus concerning 1st Embodiment of this invention. It is a top view of the LED lighting apparatus shown in FIG. It is a bottom view of the LED lighting apparatus shown in FIG. It is a side view of the LED lighting apparatus shown in FIG. It is a top view of the apparatus case of the LED lighting apparatus shown in FIG. It is sectional drawing of the LED lighting apparatus shown in FIG. 1 attached to the ceiling. It is sectional drawing when the support piece of a LED lighting apparatus is rotated from the state shown in FIG. It is a side view of the support piece and restoring force generation | occurrence | production means of the LED lighting apparatus shown in FIG. It is a side view of the support piece and restoring force generation | occurrence | production means of the LED lighting apparatus shown in FIG. It is a top view of the holding body of the LED lighting apparatus shown in FIG. It is a front view of the holding body of the LED lighting apparatus shown in FIG. It is a left view of the holding body of the LED lighting apparatus shown in FIG. It is a front view of the terminal block support body of the LED lighting apparatus shown in FIG. It is a left view of the terminal block support body of the LED lighting apparatus shown in FIG. It is a top view of the LED unit of the LED lighting apparatus shown in FIG. It is a side view of the LED unit shown in FIG. It is a bottom view of the LED unit shown in FIG. It is sectional drawing which follows the XVIII-XVIII line of FIG. It is a top view of the LED light emission part of the LED unit shown in FIG. It is sectional drawing which follows the XX-XX line of FIG. It is a principal part enlarged plan view of the LED light emission part shown in FIG. 19 (a sealing resin and a holder are abbreviate | omitted). It is a top view of the LED lighting apparatus concerning 2nd Embodiment of this invention. It is a top view of the apparatus case of the LED lighting apparatus shown in FIG. It is a top view of the holding body and terminal block support body of the LED lighting apparatus shown in FIG. It is a front view of the holding body and terminal block support body of the LED lighting apparatus shown in FIG. It is a left view of the holding body and terminal block support body of the LED lighting apparatus shown in FIG.

  A mode for carrying out the present invention (hereinafter referred to as “embodiment”) will be described with reference to the accompanying drawings.

[First Embodiment]
Based on FIGS. 1-14, LED lighting apparatus A10 concerning 1st Embodiment of this invention is demonstrated. The LED lighting device A10 includes an LED unit B, a device case 5, a socket 58, a pair of support pieces 61, a pair of restoring force generating means 62, a holding body 7, a terminal block 81, and a terminal block support 82.

  FIG. 1 is a perspective view of the LED lighting device A10. FIG. 2 is a plan view of the LED lighting device A10. FIG. 3 is a bottom view of the LED lighting device A10. FIG. 4 is a side view of the LED lighting device A10 as viewed from a third direction X described later. FIG. 5 is a plan view of the device case 5 of the LED lighting device A10. FIG. 6 is a cross-sectional view of the LED lighting device A10 attached to the ceiling C. FIG. 7 is a cross-sectional view when the support piece 61 of the LED lighting device A10 is rotated from the state shown in FIG. FIG. 8 is a side view of the support piece 61 and the restoring force generating means 62 viewed from the third direction X of the LED lighting device A10. FIG. 9 is a side view of the support piece 61 and the restoring force generating means 62 viewed from a second direction Y described later of the LED lighting device A10. FIG. 10 is a plan view of the holder 7 of the LED lighting device A10. FIG. 11 is a front view of the holding body 7 of the LED lighting device A10. FIG. 12 is a left side view of the holding body 7 of the LED lighting device A10. FIG. 13 is a front view of the terminal block support 82 of the LED lighting device A10. FIG. 14 is a left side view of the terminal block support 82 of the LED lighting device A10.

  The LED illumination device A10 shown in these drawings constitutes a downlight attached to the ceiling C, for example, as shown in FIGS. Here, for convenience of explanation, the direction parallel to the emission direction of the light emitted from the LED lighting device A10 is defined as the first direction Z, the direction perpendicular to the first direction Z is defined as the second direction Y, and the first direction. A direction perpendicular to both Z and the second direction Y is defined as a third direction X. Further, in the side view (FIG. 4) and the cross-sectional views (FIGS. 6 and 7), the emission direction of the light emitted from the LED illumination device A <b> 10 in the first direction Z is the downward direction and the direction opposite to the emission direction. Define the upward direction, respectively.

  The LED unit B constitutes a main body of the LED lighting device A10 and is a portion that becomes a light source of the LED lighting device A10. The LED unit B is accommodated in the device case 5. For convenience of explanation, the specific configuration of the LED unit B will be described later.

  The device case 5 is a member that accommodates and holds the LED unit B, which is integrally formed by squeezing, such as aluminum die casting. As shown in FIGS. 2 and 5, the shape of the device case 5 in the first direction Z view (plan view) is a circular shape. The device case 5 includes a first plate part 51, a second plate part 52, an opening 521, a taper part 53, and a flange part 54. The color of the device case 5 is not particularly limited, and the entire surface of the device case 5 according to the present embodiment is painted white.

  As shown in FIGS. 1, 2, and 5, the first plate portion 51 is a plate member having a circular shape in the first direction Z view. The first plate portion 51 has a front surface 511 and a back surface 512 that face opposite sides in the first direction Z. The surface 511 is an upper surface of the first plate portion 51 shown in FIG. 6 and is a surface facing the outside of the LED lighting device A10. The back surface 512 is a lower surface of the second plate portion 52 illustrated in FIG. 6 and is a surface facing the LED unit B. Both the front surface 511 and the back surface 512 are flat surfaces. In the present embodiment, the holding body 7 and the terminal block support 82 are fixed to the surface 511, and the support piece 61 and the restoring force generating means 62 are supported on the surface 511. Moreover, in this embodiment, LED unit B is attached to the back surface 512 side so that attachment or detachment is possible.

  As shown in FIG. 5, the first plate portion 51 is formed with a pair of holding body fixing holes 513 and a pair of holding body engaging holes 514 that are spaced apart in the third direction X. These are holes that penetrate the first plate portion 51 in the first direction Z, and are holes that are used when the holding body 7 is fixed to the surface 511. In the present embodiment, the diameter of the holding body fixing hole 513 is shorter than the diameter of the holding body engaging hole 514. Further, as shown in FIG. 5, the first plate portion 51 has a support fixing hole 515 and a support engaging hole 516 that are separated from the pair of holding body fixing holes 513 and the pair of holding body engaging holes 514. Is formed. Similar to the holding body fixing hole 513 and the holding body engaging hole 514, these are holes that penetrate the first plate portion 51 in the first direction Z, and are used when the terminal block support 82 is fixed to the surface 511. It is a hole. In the present embodiment, the diameter of the support fixing hole 515 is shorter than the diameter of the support engaging hole 516.

  Furthermore, as shown in FIG. 5, a cable insertion hole 517 is formed in the first plate portion 51 in the vicinity of the support fixing hole 515. The cable insertion hole 517 is also a hole that penetrates the first plate portion 51 in the first direction Z, similarly to the holding body fixing hole 513, the holding body engaging hole 514, the supporting body fixing hole 515, and the supporting body engaging hole 516. is there. A communication cable 88 that connects the socket 58 and the terminal block 81 to each other is inserted through the cable insertion hole 517.

  As shown in FIGS. 1, 4, and 6, the second plate portion 52 surrounds the first plate portion 51 in the first direction Z, and the back surface 512 in the first direction Z with respect to the first plate portion 51. Is a plate member extending in the direction in which the light source faces (the direction of light emitted from the LED unit B). The shape of the second plate portion 52 is cylindrical. As shown in FIGS. 3 and 6, the opening 521 is a portion constituted by the edge of the second plate part 52 facing the direction in which the back surface 512 faces in the first direction Z. As illustrated in FIG. 3, the shape of the opening 521 in the first direction Z is a circular shape.

  As shown in FIGS. 1, 4, and 6, the tapered portion 53 is interposed between the first plate portion 51 and the second plate portion 52, and is directed from the first plate portion 51 to the second plate portion 52. The plate member is inclined so that the diameter of the cross section of the device case 5 with respect to the first direction Z becomes longer. As shown in FIG. 6, the shape of the taper part 53 is a hollow frustum shape. In the present embodiment, the end edge of the tapered portion 53 surrounds the first plate portion 51 in the first direction Z and is connected to the first plate portion 51. In addition, the second plate portion 52 is connected to the end edge of the tapered portion 53 located on the opposite side of the first direction Z to the end edge to which the first plate portion 51 is connected.

  As shown in FIGS. 1 to 6, the flange portion 54 is a portion that is formed along the opening 521 and extends in a direction perpendicular to the first direction Z. The shape of the collar portion 54 is annular. The flange 54 has a flange surface 541 and a flange rear surface 542 that face opposite sides in the first direction Z. The collar surface 541 is an upper surface of the collar 54 shown in FIG. 4, and is a surface facing the direction in which the surface 511 faces in the first direction Z. The collar part back surface 542 is a lower surface of the collar part 54 shown in FIG. 4, and is a surface facing the direction in which the back surface 512 faces in the first direction Z. When the LED lighting device A10 is attached to the ceiling C, the buttocks back surface 542 is exposed from the ceiling C. As shown in FIG. 4, in this embodiment, an annular packing 59 is disposed on the flange surface 541. The packing 59 is made of, for example, a closed-cell synthetic rubber sponge using ethylene / propylene rubber. As shown in FIG. 6, when the LED lighting device A <b> 10 is attached to the ceiling C, the packing 59 is sandwiched between the ceiling C and the packing 59.

  As shown in FIG. 6, the socket 58 is a member that is fixed to the back surface 512 and is electrically connected to the terminal block 81 via the connection cable 88. The socket 58 is housed in the device case 5 together with the LED unit B. Unlike the device case 5, the socket 58 is made of a synthetic resin. The LED unit B is detachably attached to the socket 58. In this embodiment, the socket 58 is configured such that a GX53 type base of IEC (International Electrotechnical Commission) standard and JIS standard can be attached and detached.

  The pair of support pieces 61 are members for supporting the LED lighting device A10 on the ceiling C. As shown in FIGS. 1 and 2, the support piece 61 is supported by the surface 511 and is rotatable about the second direction Y. In the present embodiment, the pair of support pieces 61 are supported by the surface 511 while being separated from each other in the third direction X. As shown in FIGS. 8 and 9, the support piece 61 according to the present embodiment is made of, for example, a stainless steel wire. In this case, the wire diameter is 1.0 to 2.0 mm. The support piece 61 has a wing 611 and a protrusion 612.

  As shown in FIGS. 2 and 6, the wing portion 611 is a portion that extends along the third direction X in the first direction Z view. In the present embodiment, the wing portion 611 is configured by a pair of wires that are separated from each other in the second direction Y. As shown in FIG. 8, one end of the wing 611 that is the rotation center of the support piece 61 is connected to the restoring force generating means 62. In the present embodiment, the supporting piece 61 and the restoring force generating means 62 are a single piece. It is comprised by the single member which consists of a wire. Therefore, the support piece 61 and the restoring force generating means 62 are integrally supported by the surface 511.

  As shown in FIGS. 6 and 9, the protruding portion 612 has a restoring force generated from the restoring force generating means 62, which will be described later, in a rotational direction around the second direction Y at a position away from the rotational center of the support piece 61. It is the part which protrudes in the direction which acts. The protruding portion 612 is connected to the other end of the wing portion 611. The pair of wires constituting the wing portion 611 are connected to each other at the protruding portion 612.

  As shown in FIG. 7, the pair of restoring force generating means 62 is configured such that the support piece 61 is in the rotational direction about the second direction Y with respect to the first plate portion 51 on the surface 511 side (direction of arrow T shown in FIG. ), A member that generates a restoring force that rotates the support piece 61 toward the back surface 512 (in the direction of arrow F shown in FIG. 7) with respect to the first plate portion 51 in the rotation direction around the second direction Y. It is. FIG. 6 shows a state in which the support piece 61 is rotated in the direction of arrow F in FIG. 7 by the restoring force generated, and the pair of wing parts 611 overlap with the second plate part 52 and the taper part 53 in the third direction X. ing. In the present embodiment, the pair of restoring force generating means 62 is supported on the surface 511 while being separated from each other in the third direction X. Each restoring force generating means 62 is connected to one end of the wing portion 611 of the support piece 61 described above. As shown in FIG. 8, the restoring force generating means 62 according to the present embodiment is two coil springs that are separated in the second direction Y, and each coil spring is one end of the wing 611 along the second direction Y. Connected to. Therefore, the support piece 61 is configured to be sandwiched between the restoring force generating means 62 in the second direction Y. The coil spring that is the restoring force generating means 62 is a torsion coil spring (torsion coil spring). The restoring force generating means 62 may be a single coil spring that is connected to a pair of wires constituting the wing 611.

  As described above, in the present embodiment, since the support piece 61 and the restoring force generating means 62 are configured by a single member made of one wire, the coil spring that is the restoring force generating means 62 is, for example, Made of stainless steel wire. The wire diameter is 1.0 to 2.0 mm. As shown in FIG. 9, the center of rotation of the support piece 61 is the center N of the coil spring that is the restoring force generating means 62. In addition, the support piece 61 and the restoring force generation means 62 may be comprised from one leaf | plate spring.

  As shown in FIGS. 1 and 2, the holding body 7 is a plate member that is fixed to the surface 511 and sandwiches the restoring force generating means 62, for example, formed by pressing. As shown in FIG. 6, the restoring force generating means 62 is configured to be sandwiched between the surface 511 and the holding body 7. The holding body 7 has a pair of covering portions 71 and a pair of holding body fixing portions 72. As shown in FIG. 2, the pair of covering portions 71 and the pair of holding body fixing portions 72 are separated from each other in the third direction X. In the present embodiment, one covering portion 71 and one holding body fixing portion 72 are configured by a single member, and the other covering portion 71 and the other holding body fixing portion 72 are the other single member. It is constituted by. Therefore, the holding body 7 according to the present embodiment is constituted by a pair of members.

  As shown in FIG. 2, the pair of covering portions 71 are portions that respectively cover the pair of restoring force generating means 62. As shown in FIG. 11, the cross-sectional shape with respect to the 2nd direction Y of the coating | coated part 71 is U shape. The covering portion 71 has a top plate 711 and a pair of side plates 712. As shown in FIG. 4, the top plate 711 is a portion arranged in parallel with the first plate portion 51. As shown in FIG. 10, the top plate 711 is formed with a holder insertion hole 713 that penetrates in the first direction Z. As shown in FIGS. 2 and 6, in the present embodiment, a pair of holding body fastening members 73 are provided in the pair of holding body insertion holes 713 and the pair of holding body fixing holes 513 formed in the first plate portion 51. Each communicates. The holding body 7 is fixed to the surface 511 by the holding body fastening member 73. The holding body fastening member 73 is, for example, a bolt and a nut. Further, as shown in FIG. 11, the pair of side plates 712 is a portion connected to the top plate 711 and disposed along the first direction Z. The pair of side plates 712 are separated from each other in the third direction X. As shown in FIGS. 10 and 12, the top plate 711 and the one side plate 712 are formed with a pair of through grooves 714 along the first direction Z and the third direction X. As shown in FIGS. 2 and 4, the support piece 61 rotates around the second direction Y while being guided by the pair of through grooves 714.

  As shown in FIGS. 2 and 11, the pair of holding body fixing portions 72 are portions connected to the pair of covering portions 71 and fixed to the surface 511. As shown in FIGS. 10-12, the holding body fixing | fixed part 72 is connected with the side plate 712 in which a pair of penetration groove | channel 714 is not formed among a pair of side plates 712 mentioned above. Each of the pair of holding body fixing portions 72 is formed with a holding body protrusion 721 that protrudes in the direction in which the back surface 512 faces in the first direction Z. The shape of the holding member protrusion 721 in the first direction Z view is a circular shape. As shown in FIG. 6, in the present embodiment, the pair of holding body protrusions 721 are engaged with a pair of holding body engaging holes 514 formed in the first plate portion 51.

  As shown in FIGS. 1 to 4, the terminal block 81 is electrically connected to the LED unit B via the connection cable 88 and the socket 58, and is used to supply power to the LED unit B to which an external power supply cable 89 is connected. Such a part. The terminal block 81 is not accommodated in the device case 5 and is exposed to the outside of the device case 5. The terminal block 81 is located between the pair of support pieces 61 in the third direction X, and the terminal block 81 is arranged in a state where the longitudinal direction of the terminal block 81 is along the second direction Y. The power supply cable 89 is configured to be connected to the terminal block 81 from the second direction Y. The terminal block 81 according to the present embodiment is arranged in a state where the terminal block 81 is entirely separated from the surface 511 in the first direction Z. Here, the terminal block 81 is arranged in a state where a part thereof protrudes from the surface 511 in the first direction Z view, in other words, in a state where a part of the terminal block 81 overlaps the surface 511 in the first direction Z. May be.

  As shown in FIGS. 1, 2, and 4, the terminal block support 82 is a plate member that is fixed to the surface 511 and supports the terminal block 81. The terminal block support 82 includes a support fixing portion 821 and a terminal block support 822.

  As shown in FIGS. 2 and 4, the support fixing portion 821 is a portion fixed to the surface 511. As shown in FIG. 13, the support fixing portion 821 is formed with a support insertion hole 821 a that penetrates in the first direction Z. A support fastening member 823 shown in FIGS. 2 and 4 is communicated with the support insertion hole 821a and the support fixing hole 515 formed in the first plate portion 51. The terminal block support 82 is fixed to the surface 511 by the support fastening member 823. The support body fastening member 823 is, for example, a bolt and a nut, like the holding body fastening member 73. Further, as shown in FIGS. 13 and 14, the support fixing portion 821 is formed with a support protrusion 821 b that protrudes in the first direction Z in the direction in which the back surface 512 faces. The shape of the support protrusion 821b in the first direction Z view is a circular shape. In the present embodiment, the support protrusion 821 b is engaged with a support engagement hole 516 formed in the first plate portion 51.

  As shown in FIGS. 2 and 4, the terminal block support portion 822 is a portion that is connected to the support body fixing portion 821 and supports the terminal block 81. The support fixing portion 821 extends along the second direction Y. The terminal block support part 822 has a support part surface 822a and a support part back surface 822b that face in opposite directions in the first direction Z. The support surface 822a is an upper surface of the terminal block support 822 shown in FIG. 4 and is a surface facing the direction in which the surface 511 faces in the first direction Z. The support portion back surface 822b is the bottom surface of the terminal block support portion 822 shown in FIG. 4 and is a surface facing the direction in which the back surface 512 faces in the first direction Z. In the present embodiment, the terminal block 81 is supported by the support portion back surface 822b. In this case, the terminal block 81 is configured such that a part thereof is located on the back surface 512 side with respect to the first plate portion 51 in the first direction Z. Further, as shown in FIG. 13, the terminal block support portion 822 is formed with a pair of terminal block support holes 822 c and terminal block engagement holes 822 d penetrating in the first direction Z along the third direction X. Yes. In the present embodiment, the terminal block engagement hole 822d is located between the pair of terminal block support holes 822c. The pair of terminal block support holes 822c and terminal block engagement holes 822d are holes used when the terminal block 81 is supported by the terminal block support portion 822. In the present embodiment, the diameter of the terminal block support hole 822c is longer than the diameter of the terminal block engagement hole 822d.

  As shown in FIGS. 1 and 2, in the present embodiment, the support fixing portion 821 and the pair of holding body fixing portions 72 are separated from each other on the surface 511.

[Configuration of LED unit B]
Next, based on FIGS. 15-21, the specific structure of LED unit B which comprises LED lighting apparatus A10 is demonstrated. The LED unit B of the present embodiment includes a case 1, an LED light emitting unit 2, a cover 3 and a power supply unit 4. In the present embodiment, the LED unit B has a substantially cylindrical shape with a relatively low height, and the shape of the LED unit B in plan view is a circular shape.

  FIG. 15 is a plan view of the LED unit B. FIG. FIG. 16 is a side view of the LED unit B. FIG. FIG. 17 is a bottom view of the LED unit B. FIG. 18 is a cross-sectional view taken along line XVIII-XVIII in FIG.

  The case 1 accommodates or holds the LED light emitting unit 2, the cover 3, and the power supply unit 4. In the present embodiment, the case 1 includes a heat radiating member 11, an insulating member 12, and an intermediate bracket 15. In the present embodiment, the case 1 has a circular shape in plan view.

  The heat dissipating member 11 is a member intended to dissipate heat from the LED light emitting unit 2, and is made of a metal such as aluminum, for example. The heat radiating member 11 has a mounting surface 111, a plurality of fins 112, and an engaging portion 113. The mounting surface 111 faces an emission direction (upward in the drawing in FIG. 18) for emitting light from the LED light emitting unit 2, and is a substantially circular plane. The plurality of fins 112 are for promoting heat dissipation from the LED light emitting unit 2, and are provided over the entire outer periphery of the heat radiating member 11. The fins 112 are parallel to the axial direction and the radial direction of the LED unit B. The engaging portion 113 is an annular portion that surrounds the mounting surface 111. The engaging portion 113 is used for attaching the cover 3.

  The insulating member 12 is attached to the side opposite to the emission direction with respect to the heat radiating member 11, and the shape of the insulating member 12 in a plan view is circular. The insulating member 12 is made of an insulating material. In the present embodiment, the insulating member 12 is made of, for example, polybutylene terephthalate (PBT) resin. The insulating member 12 has a convex portion 121. The convex portion 121 is a cylindrical portion that protrudes on the opposite side to the emission direction. As shown in FIG. 16, a groove 122 is formed in the convex 121. The groove 122 has a portion extending in the axial direction and a portion extending in the circumferential direction following the portion. The insulating member 12 is provided with two pins 13. The two pins 13 are located on the opposite sides in the radial direction across the convex portion 121, and protrude on the opposite side to the emission direction. The projection 14 and the two pins 13 constitute a base 14. The base 14 is used to connect the LED unit B to the socket 58 described above, and is an IEC standard GX53 type in this embodiment. When the LED unit B is connected to the socket 58, the two pins 13 engage with the socket 58.

  The intermediate bracket 15 is provided between the heat dissipation member 11 and the insulating member 12. The intermediate bracket 15 is made of an insulating material. In the present embodiment, the intermediate bracket 15 is made of, for example, polybutylene terephthalate (PBT) resin. The intermediate bracket 15 functions to fix and hold the two pins 13 and the power supply unit 4 and to hold the wiring connecting the two pins 13, the LED light emitting unit 2, and the power supply unit 4.

  The LED light emitting unit 2 is a part that forms a light source of the LED unit B. As shown in FIGS. 19 to 21, the LED light emitting unit 2 includes an LED substrate 21, a plurality of LED chips 22, a sealing resin 24, a dam portion 25, and a holder 26. FIG. 19 is a plan view of the LED light emitting unit 2 of the LED unit B. FIG. 20 is a cross-sectional view taken along line XX-XX in FIG. FIG. 21 is an enlarged plan view of a main part of the LED light emitting unit 2 shown in FIG. 19, and a sealing resin 24 and a holder 26, which will be described later, are omitted for convenience of understanding.

  As shown in FIG. 19, the LED substrate 21 has, for example, a rectangular shape in plan view, and a plurality of LED chips 22 are mounted thereon. The configuration of the LED substrate 21 is not particularly limited. In the present embodiment, the LED substrate 21 includes a base material 211 and a wiring pattern 212. The planar view size of the LED substrate 21 is, for example, 12 × 15 mm.

  The base material 211 is made of an insulating material, and is made of a glass epoxy resin or ceramics with increased thermal conductivity. The wiring pattern 212 mounts a plurality of LED chips 22 and constitutes a conduction path to these LED chips 22. The wiring pattern 212 is made of a metal plating layer, such as Cu, Ni, Au, or Ag. In the present embodiment, the wiring pattern 212 has a bonding pad for mounting the plurality of 26 LED chips 22 and two connection pads for conducting with the holder 26. The two connection pads are rectangular portions that are spaced apart in the diagonal direction of the LED substrate 21 with the plurality of LED chips 22 in FIG.

  The plurality of LED chips 22 are light emitting elements of the LED light emitting unit 2. The LED chip 22 has a semiconductor layer made of, for example, GaN, and emits blue light, for example. In the present embodiment, 26 LED chips 22 are mounted on the LED substrate 21. These LED chips 22 are arranged in a substantially matrix shape. The LED chip 22 is a so-called 2-wire type LED chip. In the present embodiment, adjacent LED chips 22 are directly connected by a wire 23. Furthermore, in this embodiment, all the LED chips 22 are connected to each other in series. These LED chips 22 are directly connected between the two connection pads of the wiring pattern 212. The arrangement pitch of the plurality of LED chips 22 is, for example, 1.0 to 1.7 mm.

  The dam portion 25 is formed on the LED substrate 21 and may surround the plurality of LED chips 22. In the present embodiment, the dam portion 25 has a rectangular ring shape in plan view, and is made of, for example, a white epoxy resin. The height of the dam portion 25 is higher than that of the LED chip 22.

  The sealing resin 24 covers the plurality of LED chips 22 and fills a region surrounded by the dam portion 25. The sealing resin 24 is made of a material in which a fluorescent material is mixed in a transparent resin such as a silicone resin or an epoxy resin. This fluorescent material emits yellow light when excited by blue light from the LED chip 22. Moreover, you may mix and use the fluorescent material which emits red light, and the fluorescent material which emits green light by being excited by the blue light from LED chip 22. FIG. Thereby, white light, such as a light bulb color and a daylight color, is emitted from the LED light emitting unit 2.

  The holder 26 is for fixing and holding the LED substrate 21 with respect to the mounting surface 111 of the heat radiating member 11. The holder 26 has a main body 261 and two holding electrodes 262. The main body 261 is made of, for example, insulating resin, and has a plan view dimension larger than that of the LED substrate 21 as shown in FIGS. 19 and 20. The main body 261 has an opening at the center so that the sealing resin 24 covering the plurality of LED chips 22 is exposed. The two holding electrodes 262 are in contact with the two connection pads of the wiring pattern 212 of the LED substrate 21. The two holding electrodes 262 are electrically connected to the power supply unit 4 via the LED cable 48. The holder 26 is attached to the heat radiating member 11 by screws or fitting.

  The cover 3 is attached to the case 1 so as to be positioned in the emission direction. The cover 3 transmits light from the LED light emitting unit 2. Moreover, in this embodiment, the cover 3 permeate | transmits the light from the LED light emission part 2, diffusing. Examples of the material of the cover 3 include a translucent resin or glass mixed with a diffusing material. With such a configuration, the cover 3 exhibits a milky white color, for example.

  The cover 3 has a circular shape in plan view, and has an inner surface 310, an outer surface 320, a side surface 340, and an engaging portion 32.

  The inner surface 310 is located on the LED light emitting unit 2 side and faces the mounting surface 111 of the heat dissipation member 11 of the case 1. The shape of the inner surface 310 in plan view is a circular shape. The inner surface 310 according to the present embodiment has a rough finish.

  The outer surface 320 is located on the opposite side to the inner surface 310, and the shape of the outer surface 320 in plan view is a circular shape. The outer surface 320 according to this embodiment has a shape that bulges to the side away from the LED light emitting unit 2 (upper side in FIG. 18). In addition, the outer surface 320 according to the present embodiment has a smooth mirror finish, but may have a rough finish.

  The side surface 340 is a curved surface having a circular cross section along the direction in which the inner surface 310 and the outer surface 320 are separated from each other. The engaging portion 32 is provided at the outer peripheral end of the cover 3 and functions to attach the cover 3 to the case 1 by engaging with the heat radiating member 11 113 of the case 1.

  Note that the shape of the cover 3 according to the present embodiment is intended to diffuse the light emitted from the LED light emitting unit 2 without any deviation, and the shape of the cover 3 takes various shapes regardless of the shape. be able to.

  The power supply unit 4 converts, for example, commercial 100V AC power into DC power suitable for lighting the plurality of LED chips 22 of the LED light emitting unit 2. The power supply unit 4 is accommodated in the convex portion 121 of the insulating member 12.

  The power supply unit 4 of this embodiment includes a power supply board 41 and a plurality of electronic components 42.

  The power supply board 41 is a base of the power supply unit 4 and supports a plurality of electronic components 42. Moreover, it has the conduction | electrical_connection path | route which conducts the some electronic components 42 suitably.

  The plurality of electronic components 42 are elements constituting a power supply circuit for realizing the function of the power supply unit 4. The types and specifications of the plurality of electronic components 42 are not particularly limited, but representative examples include transformers, capacitors, resistors, and diodes.

  An LED cable 48 and a power cable 49 are connected to the power supply unit 4. The LED cable 48 supplies power from the power supply unit 4 to the LED light emitting unit 2, and is connected to the power supply unit 4 and the LED light emitting unit 2. The power cable 49 guides electric power received from the outside to the power supply unit 4, and is connected to the power supply unit 4 and the pin 13 of the case 1.

  Next, the effect of LED lighting apparatus A10 is demonstrated.

  In the LED lighting device A10, the support piece 61 is supported on the front surface 511 of the first plate portion 51 facing the opposite side of the back surface 512 to which the LED unit B is attached in the first direction Z. The support piece 61 is rotatable around a second direction Y that is perpendicular to the first direction Z. By taking such a configuration, the position of the rotation fulcrum of the support piece 61 is on the inner side of the second plate portion 52 in the first direction Z view. Therefore, when the support piece 61 is in the posture shown in FIG. 7, when setting the diameter of the attachment hole D of the ceiling C to which the LED lighting device A10 is attached, the support piece 61 is accommodated inside the attachment hole D. The required length can be omitted. Therefore, according to the LED lighting device A10, the diameter of the mounting hole D of the ceiling C can be set shorter and can be more compactly attached to the ceiling C.

  When the LED lighting device A10 rotates the support piece 61 toward the front surface 511 with respect to the first plate portion 51, the LED illumination device A10 restores to generate a restoring force that rotates the support piece 61 toward the back surface 512 with respect to the first plate portion 51. Force generation means 62 is provided. Since the supporting piece 61 presses the ceiling C in the first direction Z by the restoring force generated by the restoring force generating means 62 and the reaction from the ceiling C acts on the supporting piece 61, the LED lighting device A10 is attached by the supporting piece 61. It is possible to be done.

  By setting the restoring force generating means 62 as a coil spring, and further by using two coil springs spaced apart in the second direction Y, which is the rotational axis direction of the support piece 61, by appropriately setting the number of turns of the coil spring , The restoring force generated can be adjusted. Moreover, since the outer diameter of a coil spring can be set short if the number of turns of the coil spring can be freely set, the dimension of the LED lighting device A10 in the first direction Z can be reduced.

  By configuring the restoring force generating means 62 as a coil spring and applying the supporting piece 61 made of a wire, the supporting piece 61 and the restoring force generating means 62 are constituted by a single member made of a single wire. Can do. Therefore, it is possible to improve the manufacturing efficiency of the LED lighting device A10 by reducing the number of members.

  Regarding the arrangement of the terminal block 81, the terminal block 81 is supported on the support portion back surface 822 b of the terminal block support portion 822, and a part of the terminal block 81 is located on the back surface 512 side with respect to the first plate portion 51 in the first direction Z. By adopting such an arrangement, it is possible to reduce the size of the LED illumination device A10 in the first direction Z. Moreover, by setting it as the apparatus case 5 which has the taper part 53 interposed between the 1st board part 51 and the 2nd board part 52, the terminal block 81 is brought closer to the 1st direction Z view center of the apparatus case 5 more. In addition, since the LED illumination device A10 can be arranged in a direction parallel or perpendicular to the first direction Z, or in a direction having a certain angle, the size of the LED lighting device A10 can be reduced.

  Since the holding body 7 is a member that sandwiches the restoring force generating means 62 together with the surface 511, it has an effect as a stopper for the restoring force generating means 62 in the first plate portion 51 when the support piece 61 is rotated. Further, since the pair of through grooves 714 formed in each of the pair of covering portions 71 constituting the holding body 7 serve as a guide when the support piece 61 rotates, the support piece 61 rotates around the first direction Z. Can be regulated.

  The flange portion 54 functions as a stopper for preventing the LED lighting device A10 from being embedded excessively behind the ceiling C when the LED lighting device A10 is attached to the ceiling C. Further, the packing 59 has an effect of preventing the flange portion 54 from coming into contact with the ceiling C when the LED lighting device A10 is attached to the ceiling C, and causing damage to the ceiling C.

[Second Embodiment]
Based on FIGS. 22-26, LED lighting apparatus A20 concerning 2nd Embodiment of this invention is demonstrated. In these drawings, the same or similar elements as those of the LED lighting device A10 described above are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 22 is a plan view of the LED lighting device A20. FIG. 23 is a plan view of the device case 5 of the LED lighting device A20. FIG. 24 is a plan view of the holder 7 and the terminal block support 82 of the LED lighting device A20. FIG. 25 is a front view of the holder 7 and the terminal block support 82 of the LED lighting device A20. FIG. 26 is a left side view of the holder 7 and the terminal block support 82 of the LED lighting device A10.

  The LED lighting device A20 according to the present embodiment is different from the LED lighting device A10 described above in the configuration of the holding body 7, the terminal block support 82, and the first plate portion 51 of the device case 5.

  As shown in FIGS. 22 and 24, the holding body 7 includes a pair of covering portions 71 and a pair of holding body fixing portions 72 formed of a single member. The holding body 7 according to the present embodiment has a pair of holding body fixing parts 72 extending in the third direction X and connected to each other, with respect to the holding body 7 of the LED lighting device A10. 72 is integrated. As shown in FIGS. 25 and 26, the holder 7 according to the present embodiment is not formed with a pair of holder protrusions 721.

  As shown in FIGS. 22 and 24, the terminal block support 82 includes a pair of holding body fixing portions 72 (a holding body fixing portion 72 integrated in the present embodiment). Connected to. In the terminal block support 82 according to the present embodiment, the support fixing portion 821 extends in the second direction Y with respect to the terminal block support 82 of the LED lighting device A10, and the holding member fixing portion 72 is integrated. It becomes the composition which leads to. As shown in FIGS. 24 to 26, the terminal block support 82 according to the present embodiment is not formed with the support insertion hole 821a and the support protrusion 821b.

  The holding body 7 and the terminal block support 82 according to the present embodiment are configured by a single member. The holding body 7 and the terminal block support body 82 are integrally molded products by, for example, press working. As shown in FIG. 22, in this embodiment, the holding body 7 and the terminal block support 82 are fixed only by a pair of holding body fastening members 73. Further, the terminal block support 82 according to the present embodiment is a leaf spring in order to easily attach or remove the LED lighting device A20 to the ceiling C.

  As shown in FIG. 23, only a pair of holding body fixing holes 513 and cable insertion holes 517 are formed in the first plate portion 51. Therefore, unlike the first plate portion 51 of the LED lighting device A10, none of the pair of holding body engaging holes 514, the support body fixing holes 515, and the support body engaging holes 516 are formed in the first plate portion 51. .

  Next, the effect of LED lighting apparatus A20 is demonstrated.

  In the LED lighting device A20, like the LED lighting device A10, the support piece 61 is supported on the front surface 511 of the first plate portion 51 facing the opposite side to the back surface 512 to which the LED unit B is attached in the first direction Z. ing. The support piece 61 is rotatable around a second direction Y that is perpendicular to the first direction Z. Accordingly, the LED illumination device A20 can also set the diameter of the mounting hole D of the ceiling C to be shorter and can be mounted on the ceiling C more compactly.

  The holding body 7 and the terminal block support 82 according to the present embodiment are configured by a single member. In this case, when the holding body 7 and the terminal block support 82 are fixed to the surface 511, they are fixed by the pair of holding body fastening members 73, and the support body fastening member 823 is unnecessary. Therefore, in the terminal block support body 82 and the 1st board part 51, formation of the support body penetration hole 821a and the support body fixing hole 515 can be abbreviate | omitted. Further, since the rotation of the holding body 7 and the terminal block support 82 around the first direction Z is restricted by the pair of holding body fastening members 73, the holding body 7, the terminal block support 82 and the first plate portion 51. , The formation of the pair of holding body protrusions 721, the supporting body protrusions 821b, the pair of holding body engaging holes 514, and the supporting body engaging holes 516 can be omitted. Therefore, it becomes possible to further improve the manufacturing efficiency of the LED lighting device A20 compared to the LED lighting device A10 by simplifying the member molding and reducing the number of members.

  The present invention is not limited to the above-described embodiment and its modifications. For example, the present invention can be applied to a type embedded behind a vertical wall in addition to a type embedded behind a ceiling C like a downlight. In addition, the specific configuration of each part of the present invention can be changed in various ways.

A10, A20: LED lighting device B: LED unit 1: Case 11: Heat radiation member 111: Mounting surface 112: Fin 113: Engaging portion 12: Insulating member 121: Protruding portion 122: Groove portion 13: Pin 14: Base 15: Intermediate Bracket 2: LED light emitting part 21: LED substrate 211: base material 212: wiring pattern 22: LED chip 23: wire 24: sealing resin 25: weir part 26: holder 261: main body 262: holding electrode 3: cover 310: inside Surface 320: Outer surface 340: Side surface 32: Engagement portion 4: Power supply portion 41: Power supply board 42: Electronic component 48: LED cable 49: Power supply cable 5: Device case 51: First plate portion 511: Front surface 512: Back surface 513 : Holding body fixing hole 514: Holding body engaging hole 515: Support body fixing hole 516: Support body engaging hole 517: Cave Insertion hole 52: 2nd board part 521: Opening part 53: Tapered part 54: collar part 541: collar part surface 542: collar part back surface 58: socket 59: packing 61: support piece 611: wing part 612: protrusion part 62: Restoring force generating means 7: holding body 71: covering portion 711: top plate 712: side plate 713: holding body insertion hole 714: through groove 72: holding body fixing portion 721: holding body protrusion 73: holding body fastening member 81: terminal block 82 : Terminal block support 821: support fixing portion 821a: support insertion hole 821b: support protrusion 822: terminal block support 822a: support surface 822b: support back 822c: terminal block support hole 822d: terminal block engagement Hole 823: Support fastening member 88: Connection cable 89: Power supply cable Z: First direction Y: Second direction X: Third direction C: Ceiling D: Mounting hole T, F: Arrow N: Center

Claims (30)

A first plate portion having a front surface and a back surface facing opposite sides in the first direction, and surrounds the first plate portion in the first direction view, and the first plate portion out of the first direction with respect to the first plate portion A device case having a second plate portion extending in a direction in which the back surface faces,
An LED unit that is detachably attached to the back side and is housed in the device case;
A support piece supported on the surface and rotatable about a second direction perpendicular to the first direction;
Restoring force generating means for generating a restoring force for rotating the support piece on the back surface side with respect to the first plate portion when the support piece is rotated on the front surface side with respect to the first plate portion; An LED lighting device comprising: A pair of restoring force generating means and a pair of the support pieces;
The pair of restoring force generating means is supported on the surface in a state of being separated from each other in a third direction that is perpendicular to the first direction and the second direction. LED lighting apparatus of description.   The LED lighting device according to claim 2, wherein the restoring force generating means is a coil spring. The restoring force generating means is two coil springs spaced apart in the second direction,
The LED lighting device according to claim 3, wherein the support piece is sandwiched between the restoring force generating means in the second direction.   The LED lighting device according to claim 3 or 4, wherein the support piece is made of a wire.   The LED lighting device according to claim 5, wherein the support piece has a protruding portion that protrudes in a direction in which the restoring force acts in a rotation direction around the second direction at a position away from the rotation center of the support piece. .   The LED lighting device according to claim 5 or 6, wherein the support piece and the restoring force generating means are configured by a single member made of a single wire. A holding body fixed to the surface;
The LED lighting device according to any one of claims 5 to 7, wherein the restoring force generating means is sandwiched between the surface and the holding body. The holding body is connected to the pair of covering portions, each of which covers the pair of restoring force generating means and is formed with a holding body insertion hole penetrating in the first direction. A pair of holding body fixing parts fixed to the surface,
The LED lighting device according to claim 8, wherein a pair of holding body fastening members are respectively communicated with a pair of holding body insertion holes and a pair of holding body fixing holes formed in the first plate portion. A pair of through grooves along the first direction and the third direction are respectively formed in the pair of covering portions,
The LED lighting device according to claim 9, wherein the support piece is guided by the pair of through grooves and rotates around the second direction. Each of the pair of holding body fixing portions is formed with a holding body protrusion that protrudes in a direction in which the back surface faces in the first direction.
11. The LED lighting device according to claim 9, wherein the pair of holding body protrusions are respectively engaged with a pair of holding body engaging holes formed in the first plate portion.   The LED lighting device according to claim 9 or 10, wherein the pair of covering portions and the pair of holding body fixing portions are configured by a single member. One of the covering portions and one of the holding body fixing portions are configured by a single member,
The LED lighting device according to claim 11, wherein the other covering portion and the other holding body fixing portion are configured by another single member.   The terminal block connected to the LED unit and connected to an external power supply cable, and a terminal block support that is fixed to the surface and supports the terminal block. LED lighting device.   The LED lighting device according to claim 14, wherein the terminal block is located between the pair of support pieces in the third direction.   The LED lighting device according to claim 15, wherein the power supply cable is connected to the terminal block from the second direction.   The LED lighting device according to any one of claims 14 to 16, wherein the terminal block is disposed in a state in which the terminal block is entirely separated from the surface in the first direction view.   The LED lighting device according to any one of claims 14 to 16, wherein the terminal block is disposed in a state in which a part thereof protrudes from the surface in the first direction view.   18. The LED according to claim 17, wherein the terminal block support includes a support fixing portion fixed to the surface and a terminal block supporting portion connected to the support fixing portion and supporting the terminal block. Lighting device.   The LED lighting device according to claim 19, wherein the terminal block support portion has a support portion back surface facing in the same direction as the back surface, and the terminal block is supported by the support portion back surface.   21. The LED lighting device according to claim 20, wherein a part of the terminal block is located on the back side with respect to the first plate portion in the first direction. The support fixing portion is formed with a support protrusion that protrudes in a direction in which the back surface faces in the first direction.
The LED illumination device according to any one of claims 19 to 21, wherein the support protrusion is engaged with a support engaging hole formed in the first plate portion.   The LED lighting device according to any one of claims 19 to 21, wherein a part of the support fixing part is connected to the pair of holding body fixing parts.   The LED lighting device according to claim 22, wherein the support fixing part and the pair of holding body fixing parts are separated from each other on the surface.   The device case is interposed between the first plate portion and the second plate portion, and the cross section of the device case with respect to the first direction as it goes from the first plate portion to the second plate portion. The LED lighting device according to claim 19, further comprising a tapered portion that is inclined so that the diameter of the LED increases. A socket fixed to the back surface and conducting to the terminal block;
The LED lighting device according to any one of claims 14 to 25, wherein the LED unit is detachably attached to the socket. The device case has an opening formed by an edge of the second plate portion that faces a direction in which the back surface faces in the first direction.
27. The LED lighting device according to claim 1, wherein the shape of the opening in the first direction view is a circular shape.   28. The LED lighting device according to claim 27, wherein the device case has an annular flange formed along the opening and extending in a direction perpendicular to the first direction.   29. The LED lighting device according to claim 28, wherein the flange has a flange surface that faces a direction in which the surface faces in the first direction, and an annular packing is disposed on the flange surface.   30. The LED lighting device according to claim 27, wherein a shape of the LED unit in the first direction view is a circular shape.

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